No | Pattern | Freq | Relations |
---|---|---|---|
1 | must [verb] been [vb pp] [prep] some | 8 | |
2 | must have [been] [vb pp] [prep] some | 8 | |
3 | must [verb] [been] [vb pp] [prep] some | 8 | |
4 | must have [been] [vb pp] [prep] some | 8 | |
5 | must [vb infin] [been] [vb pp] [prep] some | 8 |